Audio Joiner / Merger
Merge several audio files — songs, voice notes or podcast parts — into one continuous track. Arrange the order with the up/down buttons, add an optional crossfade for smooth transitions between tracks, then export the result as WAV or MP3.
Use ↑ ↓ to change the play order, ✕ to remove a file.
0 = simple join, one song after the other.
Total length: 0.0s · Files: 0
Add at least two files to merge (one file also works — it will be converted).
Privacy note: Your audio files stay on your device — nothing is uploaded. Merging happens entirely in your browser.
How to use
- Add two or more audio files.
- Reorder them with the ↑ ↓ buttons so they play in the order you want.
- Optionally set a crossfade in seconds for a smooth overlap between tracks.
- Export as WAV (best quality) or MP3 (smaller file), then listen to the preview and download.
Limitation: files are mixed at the highest sample rate among them and converted to stereo. Very long files may use a lot of memory on phones.
Tips
- The up/down buttons fix the play order after adding files, so you can add everything first and sort later.
- Use a 1–2 second crossfade for songs so they flow together; keep it at 0 for voice notes or chapters that should stay separate.
- Listen to the merged preview above the export buttons before downloading — it is the exact result.
- Very long merges can use a lot of memory on phones, so a computer is the safer choice for big joins.